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58岁的老侯一直牙口很好,从没出过啥毛病。前几天,牙莫名其妙地疼起来,嗓子也跟着不舒服。缓过几分钟,症状就消失,老侯也没当回事儿。谁想,第二天牙疼又卷土重来,而且一次比一次疼得厉害。老侯不敢再掉以轻心,赶紧跑到牙防所检查。但奇怪的是,老侯的口腔、牙齿都没有发现异常,医生只好给他开了止疼、清热解毒的消炎药。